Research guide
Naturalization Records
An index of resources for locating U.S. naturalization records, including state-by-state links and digitized court petition and index collections. Naturalization records can reveal an immigrant ancestor's date of immigration, ship, port of arrival, and place of birth.
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Naturalization Records
Naturalization Records are often overlooked but they can be very important for genealogical research. They can help you find the date of immigration, ship's passenger list, port of arrival, and the place of birth for your ancestor.
Find Naturalization Records.
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Naturalizationrecords.com The Best site for starting your search for Naturalization Records.
The digitized court petition and index collections below were originally hosted on Footnote, which is now Fold3 — search there for the current versions of these collections:
- Naturalization Petitions for the Southern District Of California, 1887-1940
- Naturalization San Diego Naturalization Records in the Superior Court of San Diego, CA, 1883-1958
- Naturalization Index - CA San Diego 1868-1958
- Naturalization Los Angeles Naturalization Records of the Superior Court of Los Angeles, CA, 1876-1915
- Naturalization Pennsylvania Eastern Naturalization Petitions for the Eastern District of Pennsylvania, 1795-1930
- Naturalization Pennsylvania Middle Naturalization Petitions of the U.S. Circuit and District Courts for the Middle District of Pennsylvania, 1906-1930
- Naturalization Louisiana Eastern Records of the U.S. Circuit Court for the Eastern District of Louisiana, New Orleans Division: Petitions, 1838-1861
- Naturalization Massachusetts Petitions and Records of Naturalizations of the U.S. District and Circuit Courts of the District of Massachusetts, 1906-1929
- Naturalization Index - Massachusetts Index to Petitions and Records of Naturalizations of the U.S. and District Courts for the District of Massachusetts, 1907-1966
- Naturalization Maryland Naturalization Petitions of the U.S. District Court for the District of Maryland, 1906-1930
- Naturalization Index Maryland Indexes to Naturalization Petitions to the U.S. Circuit and District Courts for Maryland, 1797-1951
- Naturalization New York Eastern Petitions for Naturalization of the US District Court for the Eastern District of New York, 1865-1937
- Naturalization Index - New York Eastern Jul 1865-Sep 1906 Index to the Naturalization Petitions of the United States District Court for the Eastern District of New York, Jul 1865-Sep 1906
- Naturalization Index - NY Eastern Oct 1906-Nov 1925 Index to the Naturalization Petitions of the United States District Court for the Eastern District of New York, 1906-Nov 1925
- Naturalization Index - New York Eastern Nov 1925-Dec 1957 Index to the Naturalization Petitions of the United States District Court for the Eastern District of New York, 1925-1957
- Naturalization New York Southern Petitions for Naturalization of the US District Court for the Southern District of New York, 1897-1944.
- Naturalization Index - New York Southern Intentions Alphabetical Index to Declarations of Intention of the U.S. District Court for the Southern District of New York, 1917-1950
- Naturalization Index - New York Southern Petitions Alphabetical Index to Petitions for Naturalization of the US District Court [and Circuit Court] for the Southern District of New York, 1824-1941
- Naturalization Index - New York Western Alphabetical Index to Petitions for Naturalizations of the U.S. District Court for the Western District of New York, 1907-1966.
- Naturalization Index New York City Courts Soundex Index to Petitions for Naturalizations Filed in Federal, State, and Local Courts in New York City, 1792-1906
- Naturalization Ohio Northern Naturalization Petition and Record Books for the US District Court for the Northern District of Ohio, Eastern Division, Cleveland, 1907-1946
- Naturalization Index - WWI Soldiers Index to Naturalizations of World War I Soldiers, 1918
Immigration & Naturalization Records Comparison Chart Find out what website has what YOU need.